Seat construction



Aug. 21, 1934. A. G. HERRESHOFF SEAT CONSTRUCTION Filed May 8, 1930 E F 0 Y R 0 E Vfi H mwm A G. 0 W. N 4, m m A J .1 WV V a m 6 7 & f, 5 T M I 4 AW Patented 8" 934 Q A UNITED STATES P TENrFoFFI E SEAT CONSTRUCTION Y Alexander G. Hcrreshofi, Highland Park, Micln, assignor to Chrysler Corporation, Detroit, Mich., a corporation of Delaware i Application May "8, 1930, Serial No. 450,834

6 Claims. (01.1155-158} This invention relates to an improved back :In operation, the back cushion 6 may be swung cushion supporting structure for vehicle seats, outwardly at itslowerend and selectively enparticularly for truck cabs. gaged in any one of the recesses 19, and 21 so The main objects of this invention are to proas to adjustably position the cushion 6 both ver- 5 vide simple and inexpensive supporting means tically and horizontally with respect to the seat for the back cushion of a seat which will allow cushion 1. The springs 12 urge the lower end the back cushion to be selectively placed in one of the back cushion to-the right and tend to of a plurality of different positions; to provide swing the linksin a clockwise direction about supporting means of this kind by which the back their pivots 8 as viewed in Fig. 1, thereby retain- 10 cushion of a seat can be adjustably positioned ingportions of the beaded rim 11 engaged in both vertically and horizontally with respect to the recessinto which it has been seated and the seat proper thereof so as to condition the in position to engage the upper wall of each seat for drivers of various heights; and to prorecess; In this manner, the back cushion 6 may vide means of this kind which may be installed be placed inthe full line position shown in Fig.

15 without materially altering the conventional 1 orin'either. of the dotted. line positions22 and construction of truck cabs. 23 shownthereinso as to adapt the seat struc- An illustrative embodiment of this invention ture for drivers of various sizes. is shown in the accompanying drawing, in Although but one specific embodiment of this which: invention has herein been shown and described, it go: Fig. 1 is a fragmentary vertical section showwill be understood that various changes including the seat construction of a truck cab. ing the size, shape and arrangement of parts may Fig. 2 is a section taken on the line 22 of be made without departing from the spirit of my Fig. 1. invention and it is not my intention to limit its In the form shown, a seat cushion 1 is mounted scope other than by the terms of the appended H 5 on a floor 2 of the drivers compartment or cab claims.

of a truck which has a rear wall 3. Mounted on I claim: the inner sides of the rearwall 3 and floor 2 1. In a seat, a base structure, a seat cushion of the drivers cab are a. pair of spaced triangumounted thereon, supporting structure mounted lar shaped supports 4 which are connected at on said base portion and located rearwardly of their lower extremities by a transverse member said seat cushion, a link pivotally mounted on or cleat 5, the member 5 being inclined as shown said supporting structure and extending forwardin Fig. 1. ly and upwardly therefrom, a back cushion swing- A back cushion 6 is located between the seat ably mounted on the front end of said link and 1 and the supporting structure of the rear wall 3. having a rearwardly protruding element, resilient '35 The back cushion is swingably mounted on the means yieldably urging said back cushion toward supports 4 by a pair of links 7, the inner ends of said supporting structure and means on said supwhich are pivotally mounted at 8 on the supporting structure including vertically spaced and ports 4. The outer ends of the links are pivoted registering flanges providing recesses having subat 9 to brackets 10 which are rigidly mounted stantially horizontal upper face portions, the pro- 40 11 a metal rim 11 having a bead 11' on its outer truding element of said back cushion being enedge and secured to the rear de f th ba gageable in said recesses and with the upper face CushiOn The lower end of the back Cushion 6 portions thereof for holding said back cushion is normally urged in the direction of the rear wall against upward movement and preventing M 3 of t e cab by a pa r of springs 12 w c are otal movement oi said link so as to retain said 45- secured at one d t s 3 0n t back cushion at a selected inclination to a. ver- 10o ports 4 and at their other end to eyes 14 on the tical p1ane rim 2. In a seat, a base structure, a seat cushion A pair of brackets or racks 15 each having an mounted t supporting t t r nt d angular Shaped seat 16 and outwardly extending on said base portion associated with said seat so flan es 1 a mounted on vthe transverse cushion, a back cushion having a protruding eleher 5 by screws 18 or other suitable means. The m, means extending upwardly from and Swingracks 15 are located at an inclination to the floor ably supporting id b k hi on said Sup- 2 and they are provided with vertically spaced, rting structure and adapted to guide a portion horizontally Offset rec sses 20 a 21 r thereof'into different horizontal and vertical po- 55- ceiving the lower side of the beaded rim 11., smons ili t means for urging said back cushfloor, a support on said floor, a back cushion'liav ing a protruding element at its lower end portion, means extending forwardly and upwardly" from, and swingably supporting said back-"cushion on, said support and adapted to guide the upper portion thereof into difi'eien'tfverticalandhori-' zontal positions, a rack on said supporthavingvertically spaced notches therein for receiving said protruding element, each of said notcheshaving an upper substantially horizontal side wall portion engageable with said protruding element so as to hold said means againstswinging and said back cushion inselected verticalposia tions, and resilient meansyieldably resisting dis: placement of said protruding element from'the notch in which it is received and urging. said protruding element against the extremity of said notch and said upper side wall portion thereof, theextremities' of said notches being horizontally spaced so as to retain saidbackcushion at-a different inclination when it is in each' of-sai difierent vertical positions respectively. 4. In seat construction, a floor, a seat cushion mounted on said floor, a supportmounted on said floor in related-proximity toisaidseatcushiomrai pair of links each pivotally mounted on respectively opposite sides of said support, vawback'cushion swingably pivotedonthe free ends of said links having a rearwardly' extending flange, and a pair of racks mounted on said support each having vertically spaced and horizontally offset recesses therein for receiving said-flange so as to selectively position said back cushion both vertically and horizontally with respect to said seat cushion.

' 5. In seat construction, afsup'porting structure having a substantially upright member, a pair 'of links each pivotally mounted on respectively opposite sides of said member, a back cushion swingably pivoted on the free ends of said links having a rearwardly extending flange, a pair of ,racks mounted on said supporting structure each having vertically spaced and horizontally ofiset recesses; therein for receiving said flange so as to selectively position said back cushion both vertically and horizontally with respect to said supporting structure.

6. In seat construction, a floor, a seat cushion mounted on said floor, a supportrmounted on said floorinrelated-proximityto said seat cushion, a pair of links each pivotally mounted on respec-. tively opposite sides of said support,ra back cushion swingablyrpivoted on the free ends of said links having a rearwardly extending flange, apair of racks mounted on said supportyeach having vertically spaced and horizontally ofiset recesses therein for receiving said flange so as to selectively position said back cushion both-vertically and horizontally with respect to said seat cushion,-and.springs coacting between said back cushion and said support yieldably holding said flange in therecesses of said racks. a

ALEXANDER G. I-IERRESHOFF. 

